Improvement in ventilators



UNITED REUEL HOUGH, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN VENTILATORS.

Specification forming part of Letters Patent No. 157,447, dated December 8, 1874; application filed i June 25, 1874.

To all whom it may concern:

Be it known that I, REUEL HOUGH, of Boston, county of Suffolk and State of Massa chusetts, have invented certain Improvements in Ventilators, of which the following is a' specication My improved ventilator consists substantially of an opening through the walls of the room ork space to be ventilated, of any convenient form, through Vwhich a hollow movable casing or conductor, which nearly fills the same, slides transversely; the sides of the said casing or conductor, parallel to its line of movement, being formed wholly or in part by wire-gauze or other nely-perforated material; and the other sides of the same, which are parallel to the plane of the wall, are closed.

By this construction, when the movable casing or conductor is placed midway in its opening through the wall, the perforated sides of the said casing permit the external air to iow through the gauze into the interior of the casing, and from thence outward into the space upon the other side of the wall. The sides of the casing which are parallel to the wall being closed, prevent the, entrance of the rain while it freely admits the air. When the casing is pushed to one side, so that the closed side comes against the wall, the passage through the ventilator is closed. This construction of the lnain part of the device may also be further combined with several subordinate devices for directing the How of the currents, and for applying the same to particular uses, which will be set forth in the description. This ventilator is intended to be used in the walls of rooms, inV windows, railroadcars, and also in a vertical position in skylights.

In the drawings, Figure l is an elevation with a portion of the front plate broken away to show the parts behind it. Fig. 2 is a plan with the ventilator open, with its position when closed shown by the dotted lines. Fig. 3 is a horizontal section. y

In the drawings the ventilator is represented as being adapted to the sash of a window, and is of a circular form, which is probably the most convenient form of construction, although other forms may be adopted.

A is the frame having a circular opening through it, and B is the perforated casing sliding transversely through this opening, and nearly filling it, with its outside formed of wiregauze, or other similar material that will admit the air, and exclude solid bodies of much size. G D are the 'flat sides or ends of the casing, which are made with an outside ring or frame of metal attached to the gauze, and they also may be con nected by the small metal rods E, to strengthen the same, and serve as guides upon which the casing B1 slides. Each of the sides C D may be ma'de closed, as desired; but when made with rims, as shown, each is tted with a plate of glass, O', to close the end, and at the same time admit the light. The plate D is made with a broad flange or rim, G, that projects a considerable distance out beyond the gauze upon the discharging side of the casing, and serves as a deliector of the air laterally in all directions, so as to prevent the formation of objectionable currents in the room, and it also, when pushed outward, closes upon the frame and shuts up the opening of the ventilator, and forms an interior nish. Through the middle of the casing, in the direction of its axis, is placed a vertical partition, E', as shown in Fig. 8, which extends the entire length, and is proposed to be used in ventilators for railroad-cars, or when it is desired to use a lateral current of the wind to drive a current through the ventilator on one side of the partition, and to exhaust a corresponding current upon the opposite side of the partition, as is shown by the arrows in Fig. 3, in an obvious manner; but in the use of this device for ventilatin g rooms this partition would not ordinarily be used.

Although I have shown the ventilator as circular in form, it may be obviously made square, or of other forms, and still operate in closed, and operating substantially as de- 4. The partition E', in combina-tion with the scribed. perforated easingB,substautia11y as described.

2. The rim or defieetor G, in combination Executed June 22, 1874.

with the easing B and the frame A substan- T tially as described. 7 R' HOL G3 3. The combination, with the rims C :md D, Witnesses:

0r either of them, of the glass panes G', sub- GARDNER WARREN,

stantially as described. WM. O. HIBBARD. 

